[PATCH v3 2/4] lib: Handle a special case with str_to_list()
Simon Glass
sjg at chromium.org
Wed Jul 10 16:49:25 CEST 2024
The current implementation can return an extra result at the end when
the string ends with a space. Fix this by adding a special case.
Signed-off-by: Simon Glass <sjg at chromium.org>
---
(no changes since v1)
lib/strto.c | 4 +++-
test/str_ut.c | 4 +---
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/lib/strto.c b/lib/strto.c
index 5157332d6c1..f83ac67c666 100644
--- a/lib/strto.c
+++ b/lib/strto.c
@@ -236,12 +236,14 @@ const char **str_to_list(const char *instr)
return NULL;
/* count the number of space-separated strings */
- for (count = *str != '\0', p = str; *p; p++) {
+ for (count = 0, p = str; *p; p++) {
if (*p == ' ') {
count++;
*p = '\0';
}
}
+ if (p != str && p[-1])
+ count++;
/* allocate the pointer array, allowing for a NULL terminator */
ptr = calloc(count + 1, sizeof(char *));
diff --git a/test/str_ut.c b/test/str_ut.c
index 389779859a3..96e048975d8 100644
--- a/test/str_ut.c
+++ b/test/str_ut.c
@@ -342,9 +342,7 @@ static int test_str_to_list(struct unit_test_state *uts)
ut_asserteq_str("space", ptr[3]);
ut_assertnonnull(ptr[4]);
ut_asserteq_str("", ptr[4]);
- ut_assertnonnull(ptr[5]);
- ut_asserteq_str("", ptr[5]);
- ut_assertnull(ptr[6]);
+ ut_assertnull(ptr[5]);
str_free_list(ptr);
ut_assertok(ut_check_delta(start));
--
2.34.1
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